Diagnostic Aids

WARNING: This page is about a different car, the 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, 2003 Chevrolet Monte Carlo, and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

The following conditions may have caused the fuel pump fuse to open:

The fuse is faulty.
There is an intermittent short in the fuel pump power feed circuit.
The fuel pump has an intermittent internal condition.

For an intermittent condition, go to INTERMITTENTS in TROUBLE SHOOTING - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article.